Combined trolley and hoist



AI H'. NELLER. COMBINED TROLLEYl AND-HOIS. APPLICATION FILED IuLY I9,1920.

1,380,830, PaIenIeaJune 7,1921,

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BYl l D?? l ATTORNEY UNTE@ Siffr' earner cierres.

ALBERT H. NELLER, OF FJRFIELD, W' A, ASSGNOB TO THE LOUDEN MACHINERYCOMPANY, 0F FARFIELD, IOWA, A CORPORATON OF IOWA.

COMBINED TROLLEY AND HOIST.

Specication of Letters Patent.

Patented J une Y?. 1929i.

Application fledi'uly 19,1920. Serial No. 397,284.

To all to hom t may concern Be it known that l, Animar H. NnLLnR, acitizen of the United States, residing at Fairfield, in the county ofJefferson and State of lowa, have invented a new and usefullmprovementin Combined Trolleys and Hoists, of which the following is aspecification.

My invention relates to that class of devices designed to hoist andcarry merchandise or other things from one place to another by a hoistconnected to a trolley de signed to run on an overhead track, and itconsists of a combination and arrangement of the hoist and trolleywhereby the entire apparatus is combined in one structure, and of otherfeatures hereinafter set lforth and more specifically defined in theclaims.

ln the accompanying drawings, forming a part yof lthis specification,Figure l is a side elevation, partly in perspective, of a combine-ltrolley and hoist embodying my invention. Fig. 2 is a verticallydisposed transverse section on line Q-Qlof Fig. l. Fig. 3 is ahorizontally disposed transverse section on line of Fig. l looking inthe direction of the arrow. y

Referring to the drawings, A represents a section of overhead track tobe supported in position in any suitable manner, (sugpoil iig devicesnot shown\, and B represents trolleys to run on the track. The 'trolleysare preferably 'used in pairs joined together by the trolley frames arepreferably swiveled whereby they may be turnen to run over curved tracksor on deflected switches. D represents the frame of the hoist which isjoined to the connecting member C by a swivel head l-l, as shown in Fig.2, so that it may be turned at an angle to the member CV or be placed inreversed position thereto.

lil represents a sprocket wheel which is rotatably mounted in the frameD, and F is a hoisting chain passed over the sprocket wheel. A rotatableshaft S carrying a screw or worm gear G is journaled in the frame Dadjacent to the periphery of the sprocket wheel E.

On one end of the shafl S is a vchain wheel l carrying a hand chain d.By f moving the hand chain inone direction or 4the other the chain wheeland the shaft S on which it is mounted together with the screw or wormgear G, ywill be rotated, and the screw meshing in gears or lugs lx' onada suitable connecting member C, to whichV joining portions of thesprocket wheel E will rotate the wheel and elevate or lower the hoistingchain F together with the load that may be connected to it.

Above the shaft S, and horizontally parallel with it is a member L,preferably a piece of tubing or shaft, which is rigidly al'lixed to theframe D, which may be by a bolt o, as shown in Figs. 2 and 3. lt is alsopreferable that the inner end of the piece of tubing or bar L beinserted in the frame D, or in recesses on the inner mating faces of'the parts comprising the frame as shown in 2 and 3. @n the outer end ofthe 'iXed member L, a downwardly depending bracket M is secured, and inthe lower end of this bracket the rotatable shaft S is journaled. Theupper end m of the bracket M above the member L is preferably extendedhorizontally outward and the upper end of the chain F is attached tosaid outwardly eX- tended end of the bracket. A hook N, or anequiif'alent load attaching device, is affixed tothe lower end of thechain F.

'O represents a guard pivoted to the frame D on or near the axle P uponwhich the sprocket wheel is mounted. This guard is preferably madeU-shaped so as to straddle 'the sprocket wheel and to be pivoted onopposite sides thereof. lts central portion is preferably broadened andslightly bifurcated to come in Contact with the adjacent portion of thechain F. When the hook N is lowered by the rotation of the sprocketwheel E, the portion of the chainF forming the loop Q, will come incontact with the central portion of the guard and the continuedmovementof the chain will cause the guard to be drawn upward until its centralportion will come in Contact with the lower end of the bracket M, orwith the entstand ing end of the shaft S, when the further movement ofthe chain in that direction will be arrested. The purpose of the guard Ois to prevent the chain from being drawn up 10o too far against orbeyond the shaft S where it would be liable to become wedged or stuckfast. Also to assist'in starting the downward movement of the loop ofthe chain.

livi/Then the movement of the chain isereversed and the portion formingthe loop Q- is lowered, the guard O will drop back to the position shownin Fig. l. `R represents a guard to prevent the hand chain l fromgetting olf the chain wheel I, and T represents extended bumpers to comein contact with similar devices on other trolleys running on the sametrack, whereby the trolley wheels will be prevented from running againsteach otherz What ll claim is:

l. The combination of a trolley adapted to run on an overhead track, ahoisting device having a frame connected to the trolley, a rotatableshaft having means adapted to operate the hoisting device mounted insaid frame, a horizontally disposed fixed member having its inner endinserted in the frame above the rotatable shaft, its outer end beingextended in a line approximately parallel with the rotatable shaft, anda downwardly depending bracket secured to the outer end of said member,and the outer end of the rotatable shaft journaled in the lower end ofthe bracket.

2. rl`he combination of a trolley adapted to run on an overhead track, ahoisting device having a frame connected to the trolley, a rotatableshaft having means adapted to operate the hoisting device mounted insaid frame, a horizontally disposed member having its inner end affixedto the frame above the rotatable shaft, its outer end being eX- tendedin a line approximately parallel with the shaft, a chain adapted to passover the hoisting device, and a downwardly depending bracket secured tothe outer end of the member and having its lower end adapted to supportthe outer end of the rotatable shaft and its upper end adapted tosupport one end of the chain.

3. The combination of a trolley adapted to run on an overhead track, adownwardly depending frame pivotally connected to the trolley, asprocket wheel rotatably mounted in the frame, a chain adapted to passover the sprocket wheel, a rotatable shaft having means to operate thesprocket wheel mounted in the frame, a horizontally disposed memberhaving its inner end affixed to the frame above the rotatable shaft, itsouter end being extended in a line approximately parallel with theshaft, and a downwardly depending bracket secured to the outer end ofthe member and having its lower end adapted to support the outer end ofthe rotatable shaft and its upper end adapted to support one end of thechain.

l. The combination of a trolley adapted to run on an overhead track, adownwardly depending frame pivotally connected to the trolley, asprocket wheel rotatably mounted in the frame, a chain adapted to passover the sprocket wheel, a rotatable shaft having means to operate thesprocket wheel mounted in the frame, a horizontally disposed memberhaving its inner end affixed to the frame above the rotatable shaft, itsouter end being extended in a line approximately parallel with theshaft, and a downwardly depending bracket secured to the outer end ofthe member and having its lower end adapted to support the outer end ofthe rotatable shaft and its upper end extended out beyond the end of themember to support one end of the chain.

Fairfield, lowa, July 15th, 1920.

ALBERT H. NELLER.

